U.S. Navy Divers and Seabees, assigned to Mobile Diving and Salvage Unit (MDSU) 1 and Underwater Construction Team (UCT) 2, prepare to conduct underwater cutting operations on “Big Blue” mooring system in Apra Harbor, Guam, Dec. 11, 2017. UCT 2 provides construction, inspection, maintenance, and repair of underwater and waterfront facilities in support of the Pacific Fleet. (U.S. Navy photo by Mass Communication Specialist 1st Class Arthurgwain L. Marquez)